Many women find success by applying probiotic yogurt directly to the vagina. For that method, be sure to use plain, unflavored yogurt with zero sugar. Apply the yogurt twice per day until you notice the yeast infection has cleared for more than one day.

Supplement vs. Yogurt

Supplements are generally considered to be a more reliable and controllable way of supplying the body with acidophilus. If you are planning on taking acidophilus to fight a particular condition such as IBS, speak with your doctor to determine which form is best for you.